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第十章名词性从句
在句子中起名词作用的句子叫名词从句(Noun Clauses)。名词从句的功能相当于名词词组, 它在复合句中能担任主语、宾语、表语、同位语、介词宾语等,因此根据它在句中不同的语法功能,名词从句又可分别称为主语从句、宾语从句、表语从句和同位语从句。
高考重点要求:
掌握主语从句、宾语从句、同位语从句、表语从句的基本句型结构
弄清名词性从句的连词的用法和意义
根据句子语义确定使用何种从属连词
知识点概述
一、引导名词性从句的连接词
引导名词性从句的连接词可分为两类:
1. 名词性that从句,即以that为连接词的名词性从句。that只能起连接主句和从句的作用,不充当从句的任何成分,无词义。
2. 名词性wh-从句,即以wh-词连接的名词性从句。Wh-词包括:
连接代词:who, whom, whose, what, which, whoever, whatever, whichever
连接副词:when, where, how, why
连接词whether, if不充当句子的任何成分。
二、主语从句
1. 用作主语的从句叫主语从句。that从句作主语,that不能省略。
▲That he likes such kind of books is very 。
▲Whether he will be able e remains a question. 他是否能够来仍然是一个问题。
▲What he is looking for is none of your business. 他在找什么与你无关。
2. 很多主语从句都可以用that作形式主语。例如:
It is very interesting that he likes such kind of books.
It remains a question whether he will be able e.
3. It作形式主语主要包括以下几种类型和搭配关系:
1)It + be + adj. + 从句
It was obvious that the driver could not control his car.
2)It + be + n. + 从句
It is a pity that he missed the lecture.
3)It + be + 过去分词+ 从句
It is said that they have won the game.
4)It + be + vi. + 从句
It seems that something is wrong with puter.
三、表语从句
表语从句在句中作表语,它位于主句的联系动词之后。that从句作表语,that不能省略。表语从句只用whether,不用if。
▲The problem is that smokers cannot go without smoking. 问题是抽烟的人不抽烟就会感到难受。
▲The question is whether it is worth doing. 问题是这是否值得做。
▲This is where h